researcher wanted to know if there is a link between a sedentary lifestyle and depression among college students. to conduct the study researcher compared the depression rates of 100 sedentary college...

researcher wanted to know if there is a link between a sedentary lifestyle and depression among college students. to conduct the study researcher compared the depression rates of 100 sedentary college students and 100 active college students. they defined a person as active if that person exercised more than 2 hours a week abs sedentary if they did not exercise at all. their data showed that college students who did not exercise at all had a higher rate of depression than those who did. can we conclude that sedentary life style causes depression? A. no. the sample size is not large enough to establish causation B. Yes. because the researchers studied both groups equally and defined their terms carefully. C. Yes because the sample size is large D. no because this was an observational study